Feature request: High DPI compatibility
The icons and fonts are too small on a high DPI screen. This post suggests the reason might be the program somehow thinks it's high DPI aware. By overriding the high DPI scaling behavior, I get normal-sized icons and fonts, but they become blurry as shown in the screenshot below (click the picture to open it in a new tab to see the difference).

I think it would be nice to make the app compatible with high DPI display.
Not sure if it's possible because the WinForms library has bad scaling support. But I will try to implement it.
And when one change the DPI scaling behavior then the screenshot does not work anymore as it supposed to be, it doesn't capture the whole screen.

And when one change the DPI scaling behavior then the screenshot does not work anymore as it supposed to be, it doesn't capture the whole screen.
This issue seems to be fixed. Can you install the latest version of the app and check it? Here's a link to the latest version: https://github.com/ModuleArt/quick-picture-viewer/raw/master/inno-setup/beta/v3.0.3-beta4.exe
P.S. The screenshot feature moved to this menu:

I am using a high DPI monitor with 200% scaling so things don't look too small. This is what I see

Everything looks sharp and clean. But the menu icons are too small. I wonder if there is a way to make the icons also scale as the fonts do.
The problem is not really solved. I'm using a Surface Book 2 with a high resolution screen. So that I can use the program correctly, I have to change the resolution (DPI settings). With these settings the screenshot take only a part of the screen.

QPV_0.png => original settings, icons are too small QPV_1.png => DPI setting for normal use but problems with screenshot
Thank you for this info. I will try to check everything again.